After downloading a 355mb OTA update yesterday, a pop up notice says unable to install update. File invalid try again later. What should I do guys cos since February 1st security patch this is the second time my S7 edge is having another update and it can't go through.

Gido, 08 Jun 2017Hi guys does anyone has security update stuck in a particular month since update to Nougat? My... moreFor your confirmation and i had just bought this yesterday. Android 7.
Android security patch level: 1 February 2017
If it said no, mean no.
Not to read fake news, as some update may not apply to your model & version.
Anyhow update will make the phone more worse, easy for virus to hack in, as fake news are usually from virus themselves.

G D, 08 Jun 2017Can anyone help me? I put 2SIMs use it for while now I remove the SIM tray I just found only a... moreAccording to my model SM-935FD.
SIM 1 is the bottom slot or insert in first, which fit nicely for nano SIM card.
For SIM 2 or microSD card, which you cannot use both, only either SIM or microSD.
It also use nano SIM card and the position is exactly the same as SIM 1 position.
There is a gap between both SIM cards, as you cannot put otherwise.

Your missing SIM card either you may have forgot that you had removed or SIM card stuck inside, which is impossible.

Rudraksh, 09 Jun 2017Front camera quality or battery back up plz???
and also which color is looking very nice? Rep... moreTry blue, as just bought on 9-June. But if you put on the clear cover, it make no difference, as the clear cover is good.
A good choice, after buying it at the sales counter at the Telco shop. Dual SIM with dual stand-by as one on LTE and the other on 3G. Good in Singapore as no longer have 2G network as most other dual sim phone, 2nd slot for 2G only.
New phone with new latest Android 7 already updated, instead on waiting. Do check.

KunalMzrGalaxyUser, 08 Jun 2017I am not saying you should run Clean Master every day. But sometimes the device has lots of ca... moreFor that issue there is something called "DEVICE MAINTENANCE " inbuilt by Samsung. This is for the same purpose as clean master. Kindly use it.

G D, 08 Jun 2017Can anyone help me? I put 2SIMs use it for while now I remove the SIM tray I just found only a... morewhat??? 0_o
before you tried to take off the sim tray from your phone , is there 2 signal bars on the screen of the phone? like was it able to read the missing sim card?
I... apparently I don't understand you. XD